package cn.tedu;

import com.mysql.cj.x.protobuf.MysqlxCrud;

import java.net.SocketTimeoutException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.SQLException;
import java.sql.Statement;

public class Demo03 {
    public static void main(String[] args) throws SQLException {
        //insert();
        update();
    }

    private static void update() throws SQLException {
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/empdb?" + "characterEncoding=utf8&serverTimezone=Asia/Shanghai",
                "root", "123456");
        System.out.printf("conn" + conn);
        Statement s=conn.createStatement();
        s.executeUpdate("delete from emp where name ='Jerry'");
        conn.close();
        System.out.println("删除成功!");
    }

    private static void insert() throws SQLException {
        Connection conn = DriverManager.getConnection("jdbc:mysql://localhost:3306/empdb?" + "characterEncoding=utf8&serverTimezone=Asia/Shanghai",
                "root", "123456");
        System.out.printf("conn" + conn);
        //2.创建执行SQL语句的对象
        Statement s = conn.createStatement();
        s.executeUpdate("insert into emp(name) value ('Tom')");
        conn.close();
        System.out.println("添加成功!");
    }
}
